<template>
  <div class="icons">
    <swiper :options="swiperOption" v-if="showSwiper">
      <swiper-slide v-for="(page,index) of pages" :key="index">
        <div class="icon" v-for="item of page" :key="item.id">
          <div class="icon-img" >
            <img class="icon-img-content" :src="item.imgUrl" alt="">
          </div>
          <p class="icon-desc">{{ item.desc }}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    List: Array
  },
  data () {
    return {
      swiperOption: {
        pagination: '.swiper-pagination',
        loop: true
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.List.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    },
    showSwiper () {
      return this.List.length
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import'~styles/varibles.styl'
  @import'~styles/mixins.styl'
.icons >>> .swiper-container
  height: 0
  padding-bottom :50%
.icons
  margin-top: .1rem
  .icon
    position: relative
    width: 25%
    overflow :hidden
    height: 0
    float: left
    padding-bottom :25%
    .icon-img
      position absolute
      top: 0
      left: 0
      right: 0
      bottom:.44rem
      box-sizing border-box
      padding :.1rem
      .icon-img-content
        display block
        margin 0 auto
        height 100%
    .icon-desc
      position absolute
      left: 0
      right: 0
      bottom: 0
      height: .44rem
      line-height: .44rem
      text-align center
      color:$darkTextColor
      ellipsis()
</style>
